Support for brick arches.



z, 0 m e n u 1 d e t n t a P E T A R T s a n o 6 1 m 7 0 N SUPPORT FOR BRICK ABGHES.

' (Apfilication filed Aug. 29, 1901.

(No-Modal.)

awwwboo THE NORRIS PETERS an. PuoTo-uwo" wnsumeron, u. c.

V UNITED S ENT OFFICE HERMAN B. STRATE, OF GRAND RAPIDS, MICHIGAN.

SUPPORT FOR B RICK ARCHES.

SPECIFICATION forming part of Letters Patent No. 701,960,-dated June 10, I902. Applioation filed August 29,1901. Serial No. "73,635, (No model.)

citizen of the United States, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and useful Improvements in, Supports for Brick Arches; and I do'hereby declarethe following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in supports for brick arches,-and more particularly to such supports for fire-brick arches in metal-working furnaces; and its object is to provide a durable and practical device hav ing means for readily adj usting for any shrinkage of the brick by the action of the fire and to provide the device with certain new and useful features, hereinafter more fully described, and particularly pointed out in the claims, reference being had to the accompanying drawings, in which- Figure 1 is a side elevation the same, and Fig.3 a vertical section of the same on the lin'e.3 3 of Eig. 2.

Like letters refer to like parts in all the figures.

A represents the bricks forming one section of the arch, the entire arch consisting of a number of sections supported bya series of devices such as herein shown.

B B are two plates, preferably of cast-iron, arranged in parallel vertical planes and curved laterally to conform to the curvature of the arch. The lower edges of these plates engage the upper convex surface of the bricks A. Extending transversely between these plates B B and near the middle thereof is a cross-bar D, having perforated lateral lugs D D to engage thetransverse binding-bolts E E, and also provided with an opening D to attach any suitable tackle for hoisting the device as occasion may require. At each end of the plates B are bolts E, which bolts serve to connect the plates and also form pivotal attachments'for the grippers G, which grippers are thus hinged to the respective ends of the plates B and extend downward and adjustably engage the respective ends of the series of bricks A. Near each end of the plates B are transverse bars 0 O. Bolts H extend through the bars 0 and also through openingsin the grippers G and are provided with adjustable nuts I at their outer ends. By turning these nuts the grippers G are adjusted from time to tifneasfocca'sion mayrequire to s'ecurely clamp the bricks A in place.

By using the bars 0 andshort bolts these parts are close to the ends and do not become heated and expanded and the bolts are readgily placed in position, and in the event that 'one should break another is readily inserted. The transverse bars 0 and D aredetachably inserted at each end in suitable radial grooves in the plates B. By removing the bolts E and any portion easily replaced when burned out,-

and when in use as the bricks shrink the grippers can be readily tightened by a wrench I 1 applied to the nuts I and the bolts H. of a device ems. bodying my invention;-Fig. 2, a plan view of ranged in parallel planes,-a bar connecting the middle of the plates and having perforated lugs at each side, bolts passing through the plates and lugs, bars connecting the plates near the ends thereof, boltsconnecting the ends of the plates, grippers pivoted on said bolts, bolts passing through the end bars and grippers, and nuts on the bolts to adjust the grippers, substantially as described. I

3. In combination with'a brick arch, laterally-curved plates arranged in parallel planes, and having their concave edges engaging the convex top of the arch, grooves in the adjacent sides of the plates and near the ends thereof, detachable transverse bars inserted in the grooves, grippers pivoted to the plates and engaging the opposite'ends of the arch, bolts 7 connecting the bars and grippers, and nuts on the bolts to adjust the grippers, substantially as described.

4. In combination with a brick arch, laterally-curved plates arranged in parallel planes, and having grooves in their adjacent sides, said grooves being located at the ends and center of said curved plates, a transverse bar near the middle of the plates and having its ends in the opposing grooves, lugs on the bar, bolts extending through the plates and lugs, transverse bars near the ends of the plates, and

having their ends in opposing grooves, transverse bolts connecting the ends of the plates, grippers pivoted on said bolts, and bolts connecting the grippers to the adjacent transverse bars, substantially as described.

In testimony whereof I affix my signature in presence of two Witnesses.

HERMAN B. STRATE.

Witnesses:

LUTHER V. MOULTON, Jnssn F. ORTON. 

